cachepc-qemu

Fork of AMDESE/qemu with changes for cachepc side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-qemu
Log | Files | Refs | Submodules | LICENSE | sfeed.txt

pcihp.h (3443B)

      1/*
      2 * QEMU<->ACPI BIOS PCI hotplug interface
      3 *
      4 * QEMU supports PCI hotplug via ACPI. This module
      5 * implements the interface between QEMU and the ACPI BIOS.
      6 * Interface specification - see docs/specs/acpi_pci_hotplug.txt
      7 *
      8 * Copyright (c) 2013, Red Hat Inc, Michael S. Tsirkin (mst@redhat.com)
      9 * Copyright (c) 2006 Fabrice Bellard
     10 *
     11 * This library is free software; you can redistribute it and/or
     12 * modify it under the terms of the GNU Lesser General Public
     13 * License version 2.1 as published by the Free Software Foundation.
     14 *
     15 * This library is distributed in the hope that it will be useful,
     16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
     17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     18 * Lesser General Public License for more details.
     19 *
     20 * You should have received a copy of the GNU Lesser General Public
     21 * License along with this library; if not, see <http://www.gnu.org/licenses/>
     22 *
     23 * Contributions after 2012-01-13 are licensed under the terms of the
     24 * GNU GPL, version 2 or (at your option) any later version.
     25 */
     26
     27#ifndef HW_ACPI_PCIHP_H
     28#define HW_ACPI_PCIHP_H
     29
     30#include "hw/acpi/acpi.h"
     31#include "hw/hotplug.h"
     32
     33#define ACPI_PCIHP_IO_BASE_PROP "acpi-pcihp-io-base"
     34#define ACPI_PCIHP_IO_LEN_PROP "acpi-pcihp-io-len"
     35
     36typedef struct AcpiPciHpPciStatus {
     37    uint32_t up;
     38    uint32_t down;
     39    uint32_t hotplug_enable;
     40} AcpiPciHpPciStatus;
     41
     42#define ACPI_PCIHP_PROP_BSEL "acpi-pcihp-bsel"
     43#define ACPI_PCIHP_MAX_HOTPLUG_BUS 256
     44#define ACPI_PCIHP_BSEL_DEFAULT 0x0
     45
     46typedef struct AcpiPciHpState {
     47    AcpiPciHpPciStatus acpi_pcihp_pci_status[ACPI_PCIHP_MAX_HOTPLUG_BUS];
     48    uint32_t hotplug_select;
     49    uint32_t acpi_index;
     50    PCIBus *root;
     51    MemoryRegion io;
     52    bool legacy_piix;
     53    uint16_t io_base;
     54    uint16_t io_len;
     55} AcpiPciHpState;
     56
     57void acpi_pcihp_init(Object *owner, AcpiPciHpState *, PCIBus *root,
     58                     MemoryRegion *address_space_io, bool bridges_enabled,
     59                     uint16_t io_base);
     60
     61void acpi_pcihp_device_pre_plug_cb(HotplugHandler *hotplug_dev,
     62                                   DeviceState *dev, Error **errp);
     63void acpi_pcihp_device_plug_cb(HotplugHandler *hotplug_dev, AcpiPciHpState *s,
     64                               DeviceState *dev, Error **errp);
     65void acpi_pcihp_device_unplug_cb(HotplugHandler *hotplug_dev, AcpiPciHpState *s,
     66                                 DeviceState *dev, Error **errp);
     67void acpi_pcihp_device_unplug_request_cb(HotplugHandler *hotplug_dev,
     68                                         AcpiPciHpState *s, DeviceState *dev,
     69                                         Error **errp);
     70
     71/* Called on reset */
     72void acpi_pcihp_reset(AcpiPciHpState *s, bool acpihp_root_off);
     73
     74extern const VMStateDescription vmstate_acpi_pcihp_pci_status;
     75
     76bool vmstate_acpi_pcihp_use_acpi_index(void *opaque, int version_id);
     77
     78#define VMSTATE_PCI_HOTPLUG(pcihp, state, test_pcihp, test_acpi_index) \
     79        VMSTATE_UINT32_TEST(pcihp.hotplug_select, state, \
     80                            test_pcihp), \
     81        VMSTATE_STRUCT_ARRAY_TEST(pcihp.acpi_pcihp_pci_status, state, \
     82                                  ACPI_PCIHP_MAX_HOTPLUG_BUS, \
     83                                  test_pcihp, 1, \
     84                                  vmstate_acpi_pcihp_pci_status, \
     85                                  AcpiPciHpPciStatus), \
     86        VMSTATE_UINT32_TEST(pcihp.acpi_index, state, \
     87                            test_acpi_index)
     88
     89#endif